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This experiment is separated into parts one and two. Explain what are the [Fe3+] and [SCN-] before mixing in each part?Briefly define why the concentrations of the Fe3+ and SCN- are different in the two parts of the experiment.
Inexperienced workers commonly make mistakes in TLC experiments. Give the result in the following case: * You spotted 1/2 cm from the bottom edge and immersed the plate in 1 cm depth of solvent.
A mixture intially contains A, B,C in the following concentrations: A= .700 B= .850 C=.400. the following reaction occurs and an equilibrium is established.
How do you write structural formulas for all the constitutionally isomeric compounds having the given molecular formula C3H9N,
What is the lewis structure and molecular shape around the carbons in CCl2CH2 as predicted by the VSEPR theory?
Write the simplest balanced equations, and find the actual relative masses of the elements. Explain your reasoning.
Calculate the pH of a buffer formed by mixing 95 mL of 0.13 M lactic acid with 85 mL of 0.15 M sodium lactate.
how many grams of benzene are needed in 46.3 grams NaBr (103 g/ mol)? the freezing point of solution to 3.94 degree C?
1.248-g sample of limestone rock is pulverized and then treated with 30.00 mL of 1.035 M HCl solution. the excess acid then requires 11.56 mL of 1.010 M NaOH for neutralization.
If it takes 526 J of energy to warm 7.40 g of water by 17 °C, how much energy would be needed to warm 7.40 g of water by 55 °C?
Does the effective buffer range of a buffer solution depend on the concentrations of the conjugate acid and base pairs in the buffer solution
A solid mixture (5g) consisting of lead nitrate as well as sodium nitrate is heated below 600 degree Celsius until the weight of the residue was constant. If the loss in weigh is 28%, Compute the amount of lead nitrate and sodium nitrate in the mi..
Melting-point ranges are determined in glass apparatus. This means that glass constitutes an impurity in the system. Why does the glass have no noticeable effect on the melting-point ranges
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